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SPC560D40L1 Datasheet(PDF) 56 Page - STMicroelectronics |
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SPC560D40L1 Datasheet(HTML) 56 Page - STMicroelectronics |
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56 / 90 page ![]() Electrical characteristics SPC560D30x, SPC56040Dx 56/90 Doc ID 16315 Rev 7 Figure 10. Fast external crystal oscillator (4 to 16 MHz) timing diagram Table 36. Crystal description Nominal frequency (MHz) NDK crystal reference Crystal equivalent series resistance (ESR) Crystal motional capacitance (Cm) fF Crystal motional inductance (Lm) mH Load on xtalin/xtalout C1 =C2 (pF) (1) Shunt capacitance between xtalout and xtalin C0(2) (pF) 4 NX8045GB 300 2.68 591.0 21 2.93 8 NX5032GA 300 2.46 160.7 17 3.01 10 150 2.93 86.6 15 2.91 12 120 3.11 56.5 15 2.93 16 120 3.90 25.3 10 3.00 1. The values specified for C1 and C2 are the same as used in simulations. It should be ensured that the testing includes all the parasitics (from the board, probe, crystal, etc.) as the AC / transient behavior depends upon them. 2. The value of C0 specified here includes 2 pF additional capacitance for parasitics (to be seen with bond-pads, package, etc.). VFXOSCOP TFXOSCSU VXTAL VFXOSC valid internal clock 90% 10% 1/fFXOSC S_MTRANS bit (ME_GS register) ‘1’ ‘0’ Table 37. Fast external crystal oscillator (4 to 16 MHz) electrical characteristics Symbol C Parameter Conditions(1) Value Unit Min Typ Max fFXOSC SR — Fast external crystal oscillator frequency —4.0 — 16.0 MHz |
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